COMBINATION OF DRIVE DRUM AND AUTOMOTIVE CATERPILLAR CHAIN AND METHOD OF CRAWLER TENSIONING Russian patent published in 2013 - IPC B62D55/20 B62D55/65 

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Combination of said drum and caterpillar track comprises caterpillar track and drive drum. Caterpillar track consists of interconnected track shoes. Every said shoe has the surface of traction bite and inner surface. Caterpillar track has extra driven surfaces. Caterpillar track runs around drive drum so that shoes stay in contact with drive drum. Said drive drum incorporates axle and comprises drive surfaces and rim circular surface. One of drive surfaces engages with one of driven surfaces at caterpillar track. Rim circular surface comprises contact surfaces for shoes. Every contact surface stays in contact with inner surface of one shoe in contact with the drum. Contact surface for shoe is shaped so that the line perpendicular to tangent to said contact surface does not cross drive drum axle. Caterpillar track comprises carcass and combination of drive drum and caterpillar track. Caterpillar track comprises carcass and combination of drive drum and caterpillar track. Method of transmitting force between drive drum and caterpillar track comprises applying torque via drive drum to caterpillar track using drum drive surface and contact surfaces for shoes at the rim. Torque is applied by means of contact surfaces for shoes at drive drum rim. Torque has the arm to create force at caterpillar track owing to contact with contact surfaces for shoes at the rim.

EFFECT: efficient transfer of traction to caterpillar track.

18 cl, 28 dwg